Mysterious fires fan an ancient grudge between the Arboreals and the Ferfolk, pushing lifelong enemies toward a devastating war. Two young strangers overcome their mistrust of each other and uncover the real force intending to ravage the land Arboreals and Ferfolk have been enemies for a thousand years, so when an Arboreal wizard dies in a mysterious fire fueled by unnatural green flames, his neighbors are quick to assign the blame and prepare for war. But the wizard's inquisitive apprentice is not convinced. Jarlen sets out to discover who really killed his master and meets Tyraz, an obstinate Ferfolk warrior investigating similar attacks against his town. Working together, the two inexperienced adversaries must overcome their mistrust of each other and expose the hidden evil behind the magical flames-an ancient spirit with a grudge of its own.